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Contact system of three-station isolating switch

A technology of isolating switch and contact system, applied in electrical switches, air switch parts, high-voltage air circuit breakers, etc., can solve problems such as reducing work efficiency and increasing costs, and achieves reasonable location, stable protection, and space utilization. the best effect

Pending Publication Date: 2021-01-19
武汉倍诺德开关有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional maintenance method is to conduct maintenance after the two-position isolating switch is opened and the grounding switch is grounded, which greatly reduces the work efficiency and increases the cost.

Method used

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  • Contact system of three-station isolating switch
  • Contact system of three-station isolating switch
  • Contact system of three-station isolating switch

Examples

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] see Figure 1-5 , the present invention provides a technical solution: a contact system of a three-position isolating switch, including a static contact assembly 1, a moving contact assembly 2, a grounding contact assembly 3, a moving contact 4, a base plate 11 and The mounting plate 7, the base plate 11 and the mounting plate 7 are arranged in parallel and at intervals, one end of the moving contact assembly 2, the static contact assembly 1 and the gro...

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Abstract

The invention discloses a contact system of a three-station isolating switch, which comprises a static contact assembly, a moving contact assembly, a grounding contact assembly, a moving contact, a base plate and a mounting plate, wherein the base plate and the mounting plate are arranged in parallel at intervals; two ends of the moving contact assembly, the static contact assembly and the grounding contact assembly are respectively fixed on the base plate and the mounting plate through insulators; a pin hole in the lower end of the moving contact is hinged to the moving contact assembly through a pin so that the moving contact can rotate around a hinge point, the static contact assembly and the grounding contact assembly are both located on the track of the rotating movement of the movingcontact, and a pin hole in the right side of the moving contact is hinged to one end of the connecting rod through a pin; the other end of the connecting rod is hinged with one end of a crank arm through a pin, and the other end of the crank arm is vertically sleeved on the main shaft fixed between the base plate and the mounting plate. The moving contact of the contact system has a stable motiontrail, and the stability of the opening and closing actions of the isolating switch is ensured.

Description

technical field [0001] The invention relates to the field of isolating switch equipment, in particular to a contact system of a three-position isolating switch. Background technique [0002] At present, during the maintenance operation of the rail transit power grid, in order to prevent the substation from mistransmitting power and eliminate the influence of the induced voltage and entanglement charge on the catenary, it is necessary to temporarily ground the catenary in the work area to ensure the safety of the maintenance personnel. The traditional maintenance method is to conduct maintenance after the two-position isolating switch is opened and the grounding switch is grounded, which greatly reduces the work efficiency and increases the cost. With the application of the three-position isolating switch, the two-position isolating switch and the grounding switch are integrated into a three-position isolating switch, and the isolating switch can be directly switched to the g...

Claims

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Application Information

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IPC IPC(8): H01H31/02
CPCH01H31/026H01H31/023
Inventor 曹金林何贤伟涂勇
Owner 武汉倍诺德开关有限公司
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